Atransfer rna (#1) attached to the amino acid lysine enters the ribosome. the lysine binds to the growing polypeptide on the other trna (#2) in the ribosome already. which component of the complex described enters the exit tunnel through the large subunit of the ribosome?

The correct answer will be- newly synthesized polypeptide

Explanation:

The process of translation or the synthesis of proteins takes place in the ribosomes which provide a site for the synthesis of polypeptides.  The ribosomes are made up of two subunits: small and large subunits which provides slots namely A, P and E sites.

The tRNA brings specific amino acid corresponding to the codon of the mRNA and during elongation, the tRNA molecule moves from A site to P site to E site.

The component which exits the exit tunnel is the formed polypeptide chain which exits from the E or exit site.

Thus, the newly synthesized polypeptide is the correct answer.

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